- Titanium Dioxide (TiO2): A Versatile Semiconducting Material for Environmental and Antibacterial Applications

A drastic improvement in photocatalytic H2 production by TiO2 nanosheets grown directly on Ta2O5 substrates

Nanoscale ◽

10.1039/d1nr02413b ◽

2021 ◽

Author(s):

Benedict Osuagwu ◽

Waseen Raza ◽

Alexander Tesler ◽

Patrik Schmuki

Keyword(s):

Titanium Dioxide ◽

Water Splitting ◽

H2 Production ◽

Single Crystalline ◽

Photocatalytic Water Splitting ◽

Semiconducting Material ◽

Tio2 Nanosheets ◽

Photocatalytic Applications

Titanium dioxide (TiO2) is the most frequently studied semiconducting material for photocatalytic water splitting. One of the favored forms of TiO2 for photocatalytic applications is layers of erected single-crystalline anatase...

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Applications of Titanium Dioxide Materials

10.5772/intechopen.99255 ◽

2021 ◽

Author(s):

Xiaoping Wu

Keyword(s):

Titanium Dioxide ◽

Electronic Materials ◽

High Refractive Index ◽

Photocatalytic Properties ◽

Electron Hole ◽

White Pigment ◽

Semiconducting Material ◽

Wide Range ◽

Energy Environment ◽

Very High

Titanium dioxide (TiO2) is a stable, non-toxic inorganic material. Because of very high refractive index, TiO2 has been widely used as a white pigment. The optimal particle sizes of TiO2 for pigment applications are around 250 nm. The pigmentary applications of TiO2 can be found in many common products such as paints, plastics, paper and ink. Global titanium dioxide pigment sales have reached several million tons annually. Titanium dioxide is also a semiconducting material. When excited by photons which have energy equal to or higher than the band gap of TiO2, electron/hole pairs can be generated. The dynamics of the photo-generated electron/hole pairs of TiO2 is fundamentally important to its photocatalytic properties. More recently, nano-structured TiO2 has raised a great deal of interests in research after the discoveries of the important potentials for applications. The enormous efforts have been put in the preparation, characterization, scientific understandings, and modifications of the photocatalytic properties of TiO2. The applications of nano-structured TiO2 can be now found in a wide range of areas including electronic materials, energy, environment, health & medicine, catalysts, etc. This chapter has discussed and highlighted the development of the applications of titanium dioxide materials in many of those areas.

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Studies on the mechanism of printing film-coated tablets containing titanium dioxide in the film by using UV laser irradiation

Drug Development and Industrial Pharmacy ◽

10.1080/03639040903213725 ◽

2009 ◽

Vol 00 (00) ◽

pp. 090915102728058-8

Author(s):

Yoshiteru Kato ◽

Yasuhiko Nakashima ◽

Naoki Shino ◽

Koichi Sasaki ◽

Akihiro Hosokawa ◽

...

Keyword(s):

Titanium Dioxide ◽

Laser Irradiation ◽

Uv Laser

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Development and production experience of the multilayer curtain-coated linerboard of Ji’an PM No. 3,

TAPPI Journal ◽

10.32964/tj13.2.17 ◽

2014 ◽

Vol 13 (2) ◽

pp. 17-25

Author(s):

JUNMING SHU ◽

ARTHAS YANG ◽

PEKKA SALMINEN ◽

HENRI VAITTINEN

Keyword(s):

Titanium Dioxide ◽

High Speed ◽

Food Packaging ◽

Production Efficiency ◽

Positive Impact ◽

Low Cost ◽

Board Structure ◽

Flexographic Printing ◽

Curtain Coating ◽

Coating Formulations

The Ji’an PM No. 3 is the first linerboard machine in China to use multilayer curtain coating technology. Since successful startup at the end of 2011, further development has been carried out to optimize running conditions, coating formulations, and the base paper to provide a product with satisfactory quality and lower cost to manufacture. The key challenges include designing the base board structure for the desired mechanical strength, designing the surface properties for subsequent coating operations, optimizing the high-speed running of the curtain coater to enhance production efficiency, minimizing the amount of titanium dioxide in the coating color, and balancing the coated board properties to make them suitable for both offset and flexographic printing. The pilot and mill scale results show that curtain coating has a major positive impact on brightness, while smoothness is improved mainly by the blade coating and calendering conditions. Optimization of base board properties and the blade + curtain + blade concept has resulted in the successful use of 100% recycled fiber to produce base board. The optical, mechanical, and printability properties of the final coated board meet market requirements for both offset and flexographic printing. Machine runnability is excellent at the current speed of 1000 m/min, and titanium dioxide has been eliminated in the coating formulations without affecting the coating coverage. A significant improvement in the total cost of coated white liner production has been achieved, compared to the conventional concept of using virgin fiber in the top ply. Future development will focus on combining low cost with further quality improvements to make linerboard suitable for a wider range of end-use applications, including frozen-food packaging and folding boxboard.

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